10 oz., 80% cotton, 20% polyester; Pre-washed and pre-shrunk fabric for soft hand feel, anti-torque; Semi-combed and ringspun cotton yarn, anti pilling; All heather colors are 60% cotton, 40% polyester; 100% cotton face on solid colors;Underarm gussets; 1x1 ribbed cuffs, waistband and collar with spandex; Double needle stitching and cover stitching allover body ; Inset Sleeves;